CHC CRANE DECK 4200 TWO PROP METHOD Load Reactions when the CHC deck props are left 20mm short at the front. Assumed load always centre both ways on the outboard of the platform. All loads are static loads. No load factors applied. Horizontal force not taken into account. Reactions provided based on rigid supports i.e. effects on deflections of supporting slabs not factored into design. 4500mm Outboard
4750mm Outboard
5000mm Outboard
5250mm Outboard
SWL-UDL
5000
4000
3200
2500
RA (t)
* Downward
7.1t
6.6t
6.1t
5.7t
RB (t)
* Upward
0.0
0.0
0.0
0.0
RC
* Reinforced concrete (min 180mm thick slab)
2.5t
2.4t
2.3t
2.2t
* Reactions on each side of the Platform
3810 INTERNAL
4230
1516
4200
Side Elevation - Retracted
CHC
RB
CRANE DECKS
1298
Prop Height 2400 - 3300
Front Elevation 4200
2180.00
1725.00
RA
4230 INBOARD
Side Elevation - Fully Extended
5250 OUTBOARD Total Weight of Deck - 3680kg Weight of Moving Deck - 2435kg Weight of Fixed Section - 1240kg
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